Kirk Korver, the youngest brother of Cleveland Cavaliers guard Kyle Korver, died Tuesday from an undisclosed sudden illness, a spokesperson for the Korvers told the Des Moines Register.

In an interview Wednesday, Dan Sorensen, the executive director of operations for Third Reformed Church of Pella, told the Register that Kirk Korver died following a sudden illness Tuesday afternoon in Iowa City. Kirk Korver's father, Kevin, is the senior pastor at the church.

“Kirk became seriously ill last week and died Tuesday afternoon in Iowa City,” said Sorensen, who identified himself as a family spokesman.

Pella's Kirk Korver tries to block the shot of Waverly-Shell Rock's Phillip Broome during the first half of their game at the Iowa State Basketball Tournament at Wells Fargo Arena on May 14, 2007. Register file photo

It is with great sadness that UMKC shares the passing of one of its student-athletes, Kirk Korver. A 2014 graduate, Kirk was an exemplary student-athlete. He defined kindness & hard work. Our hearts & prayers go out to the Korver family. He will be missed & forever loved. pic.twitter.com/6VzVGl8obK

Garden Chapel Funeral Home of Pella is handling funeral and visitation services for Kirk Korver. A visitation will be from 1:30 p.m. to 6 p.m. Sunday at Third Reformed Church, located at 708 E. 13th Street in Pella. Family will be present from 3 p.m. to 6 p.m.

Kirk Korver is the son of Rev. Kevin Korver and Laine Korver of Pella. He has three surviving brothers: Kyle, Klayton and Kaleb. All brothers played at the collegiate level or above (Kyle—Creighton, 15-year NBA veteran; Klayton—Drake; Kaleb—Creighton.)

Kyle Korver left the Cavs on Friday to go home to Iowa to be with his brother. Joe Vardon, who covers the Cavaliers for Cleveland.com, reported that Kirk Korver fell seriously ill last week.

Cleveland will be without Kyle Korver when it faces Eastern Conference-leading Toronto Raptors on Wednesday night.

The Cavs released a statement late Tuesday addressing that Kyle Korver will be excused from the team to be with family.

"We extend our deepest condolences and heartfelt best to Kyle and his entire family as they go through this very difficult time," the statement concluded.

We are very sad to share that Cavaliers guard Kyle Korver’s brother, Kirk, passed away today. Kyle has been excused from the team to be with his family. We extend our deepest condolences and heartfelt best to Kyle and his entire family as they go through this very difficult time.